: Northstar Engines and System Technical Discussion



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  1. very hard start in the cold on N*
  2. L37 or LD8 ????
  3. Need a reliable source for Northstar Torque specs
  4. Northstar Rod Spec's & 3.6L
  5. symptoms of bolt failure/lifted heads
  6. 99 Deville Northstar Overheating -wanting non contradicting answers
  7. 2000 DeVille Overheating Update
  8. Bad Alternator?
  9. 1996 Deville Troubleshoot update
  10. Fuel pressure regulator?
  11. IAC Counts
  12. Thermagasket Does It Work???
  13. Missed one connection
  14. Those Damn HEAD GASKETS
  15. LC3 FWD Swap?
  16. ? For Ewill or AJ
  17. looking for pictures of northstar valvetrain
  18. So, here are the symptoms, whats wrong
  19. Northstar Valvetrain Clatter
  20. 200 DeVille Blows hot air at low speed turns cold
  21. Could it be the Water Pump Knocking
  22. Can anyone tell me whats wrong?
  23. Front Valvetrain Clacking
  24. labor cost to replace o2 sensor????
  25. Difference between VIN Y and VIN 9
  26. Got Code P1415 Please Help
  27. 2000 Deville with northstar
  28. 1034-loss of PCM data
  29. Obd I P046
  30. Computer/wiring problems
  31. Need help on 98 Seville/Northstar
  32. New HG Installed on a 99, Pings on Start Up?
  33. Got my 05 Deville back from Dealer!! and extra part for sale.
  34. Need help - going to see a 98 Seville STS on Sat, what do I check?
  35. Sick Tranny?
  36. Engine Help!!!
  37. 2nd annual midwest meet !
  38. 2001 Cadillac SLS LD8 Bore-increase
  39. White Smoke coming from front of car
  40. !996 Deville help troubleshoot
  41. I have a question about cold startswith N*??
  42. How do you disable the traction control perm without having to press the button in...
  43. 94 N* EGR valve ?? Engine stumbles.
  44. P0121, P0507 High Idle???
  45. 94 ETC no shift, wont idle
  46. Looking for '98 ETC mods
  47. What's your preference for plugs and wires ?
  48. intake manifold exploded/hole after backfire??
  49. 95 STS Cooling System Quirks
  50. MSD ignition
  51. Idea for vehicle to do Northstar swap on.
  52. NEED HELP - HAVE CODES P1416 and P0101
  53. quote???
  54. FPR replacement on 94 N*
  55. torker
  56. Sticking gas pedal????, high idle all of the sudden???? What do I check??? PLZ HELP!!
  57. Crankshaft & Cam sensors questions
  58. Why is my '96 Northstar now using oil?
  59. how to search forums..and cpk sensor question (2000 cadillac stalling)
  60. O2 Sensor Questions
  61. How can you tell if your HG's are shot?
  62. Rebuilt N*
  63. 97 STS vs. The drag strip
  64. 94 northstar starting problem
  65. Can i use synthetic oil in northstar?
  66. Getting Screwed
  67. Where is the main engine to body ground?
  68. white smoke n hp loss
  69. Is it me, or are alot of N*s having cracked blocks
  70. this is not an arguement thread for oil !
  71. 95 northstar tranny
  72. Is It Possible To???
  73. Engine stopped at the end of an exit ramp Any IDEAS WHY?
  74. Serpentine belt
  75. Need a VIN to a STS with the Z(W) option, I have the option but I don't like the Euro
  76. Removing EGR on a'96 SLS
  77. Whats the easy way to change the alternator on a Northstar? (99 Deville)
  78. Northstar shifting past redline
  79. 93/94 engines
  80. No Heat at Idle
  81. What's involved to drop the oil pan?
  82. Iradium spark plugs for 99deville? Better or worse? What the best plug & wires??
  83. Tell me about Force Motors/pressure control solenoids
  84. 99 Head Gasket Warranty?
  85. How can u save gas on a 99 deville?
  86. PC0327 - 96DeVille
  87. 1995 STS Cooling problems?
  88. Sts engine has this knocking sound
  89. Heater Core Leak/ Need Some Help, Please
  90. GM MAF sensor information and Discussion
  91. bottom end problems??
  92. Car runs hot but doesn't over heat
  93. Fuel Line Leak
  94. I have a cracked block, what next?
  95. RTV Silicone on Transmission Side Cover?
  96. hypothetically speaking
  97. 02 STS uses tons of oil
  98. Northstar Modifications
  99. 10w40 in N*
  100. 94 STS starts only if pressing gas, idles rough, dies after a couple minutes
  101. upgrading 94 concours
  102. '98 STS valve cover
  103. HELP- Dropped a bolt in the intake valley
  104. Intake manifold crack?
  105. Need Some Code Help 02 Seville
  106. Crankshaft position sensor
  107. engine compatibility
  108. 1994 DeVille Concourse
  109. misfire at idle
  110. Need help removing 99 STS northstar motor
  111. 1st time motor pull for HG on 99 N*, some questions
  112. 97 Etc N* Head Gasket Project
  113. Headgasket Leaks & Repairs
  114. check coolant light on???
  115. High idle/ IAC clicking?
  116. HELP!! Fuel Rail Recall Problems 1996 Seville
  117. Engine stutter/punch
  118. P0741 TCC Stuck ON, tried much, what next
  119. What is the Northstar suppose to sound like?
  120. 2003 Sts 0-70
  121. IAC valve
  122. strange rumble sound during hard acceleration.
  123. 2002 STC - Front Engine Mount Broken
  124. Mobil 1 5W30 meets GM spec 4718M but Mobil 1 10W30 DOES NOT. WHAT GIVES?
  125. Unbolting "beauty cover" on a 1999 Deville What GIVES
  126. Where is my IAT Sensor located? 99 sts
  127. 1997 Seville SLS
  128. Arizona Cadillac Owners Cheap Northstar Engine
  129. questions about PC0300 code on 96 deville
  130. Help with this code...97 Cadillac deville
  131. Drive vs 3 What's better???
  132. Cam numbers?
  133. What Spark Plugs for a 1999 DeVille Northstar?
  134. Using synthetic oil in a Northstar-Why does Cadillac recommend 10W30?
  135. Engine Oil Myths including ZDP by GM
  136. anyone ever use HEAL-A-SEAL
  137. Does vacuum sound from Surge Tank equal head gaskets?
  138. 94 Northstar Flexplate knocking noice. HELP!!
  139. 2003 DHS - Sluggish - EGR?
  140. Whirring/grinding That's Speed Sensitive
  141. 2002 deville/dhs engine trouble
  142. How can I clean the Mass Air Flow??
  143. Thanks for nothing, Northstar.
  144. P0147 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 3 - overheating
  145. Crank sensor tech 95 sts
  146. 1st gear WOT
  147. The End
  148. 99 STS Turbo charged video
  149. valve seals
  150. 1999 Seville Ignition DTC Help!
  151. Smoking Northstar?
  152. How long is your NS dipstick?
  153. weep holes
  154. engine swap for a 2001 dts
  155. P0741 - TCC System Stuck Off
  156. new Delco spark plug wires installed
  157. 1998 Deville overheating
  158. Help Having A Heart Attack! P039 / TRanny?
  159. N* programmer?
  160. Is it possible?
  161. Northstar Buick
  162. N* Runs Rough at Cold Start
  163. Bank 1 , 2 ??????
  164. Engine build
  165. P0300,p - Engine Misfire Detected 2002 deville, help please
  166. 2003 Deville with RWD
  167. Starter location
  168. Questions, Questions, and more Questions
  169. 93 sts traction disabled
  170. rental lincoln
  171. how to stay away from power loss
  172. 96 sts supercharger
  173. Are headgasket issues getting more common lately?
  174. 1998 Seville STS Chiptuning
  175. Tranny problems?
  176. Northstar Dyno Registry
  177. New Engine...climate control issues.
  178. Cryogenics
  179. My Photo Essay N* Head Gasket Repair Job
  180. Custom intake and nitrous
  181. 94 concours
  182. SLS Y-Code Engine: Do I need to replace the EGR Valve? PCM?
  183. service manual
  184. Possible Applications for Northstar?
  185. Need help....PLZ!!
  186. so i got a few PCM codes
  187. GM's Veiw on Fuel and Oil Additives
  188. How do I Reset the Change Oil Message?
  189. so when i went to pull codes, it just said all
  190. T061 T083
  191. 97 Deville No Longer Starts
  192. help on my 99' seville sls
  193. Starting issue
  194. 97 SLS Motor Swap to an 03. Is it possible?
  195. head
  196. 99 SLS and Straight DexCool rather than 50/50
  197. No 1st Gear!!!
  198. Cheap Northstar in NH, 35,000 miles
  199. Steering Wheel puff of smoke
  200. on the tranny subject
  201. Talk about luck!!
  202. New motor runs a lil hotter?
  203. o2 sensor question
  204. What is HOT for a blown head gasket
  205. Need Help Info On Where To Buy Rebuilt Engine
  206. compatable parts
  207. NorthStar swap wiring harness
  208. product question
  209. How long do you think caddy will keep the N*?
  210. SS Fuel Rail Removal
  211. Would this be a wise choice? [CAI] on a 184,000 mile northstar
  212. E85 on northstar ???
  213. just got my Plates
  214. 1996 Cadillac DeVille NO CODES ????
  215. Engine code - EOP
  216. Type of engine?
  217. Turbo Charged STS Cadillac
  218. Northstar Cam specs
  219. How can I drive 1000 miles with a coolant leak?
  220. To Rebuild or not.
  221. Do you use dealer for Northstar repairs?
  222. How long do Northstar engines last?
  223. 4.6 northstar fuel pressure?
  224. 150 miles in limp home mode
  225. CKP Question for One of the Techs
  226. Any problems trying 20W-50 in a '97?
  227. New 95' STS owner with tech question
  228. tune up ,whats involved?
  229. Oh shoot...need help ASAP...:(
  230. Radiator Cooling Fans not running
  231. Ram Air! (Maybe)
  232. Engine runs a bit rough during cold winter starts
  233. "break in" period for new Northstar engine
  234. How many miles to you get per tankfull with your north*?
  235. Inserts
  236. GM now offers Premium Remanufactured 4.6L Northstar
  237. 00 to 03 engine in a 98 or 99 Seville.
  238. recommended shop in Toronto/Kitchener area
  239. After head gasket repair engine knocks
  240. transaxel fluid change
  241. N* Injectors and Fuel Pressure Regulator
  242. transaxel filter
  243. 2002 plentum leak
  244. Sts Running Terrible
  245. 96 Cylinder head on 93 block
  246. My car has 121k on it..should I change the trany fluid?
  247. 96 to 99 Eldo, Deville, and 96, 97 Seville Tuning
  248. valve noise at startup
  249. Breaking in a N*
  250. Invisible leak (coolant)